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Finding the Fourth Proportional to 882.46, 1,324.16 and 574.24

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Solution

The fourth proportional to 882.46, 1,324.16 and 574.24 is: 861.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.46 : 1,324.16 = 574.24 : x
  2. Step 2: Convert to fraction form
    882.46/1,324.16 = 574.24/x
  3. Step 3: Cross multiply
    882.46x = 1,324.16 × 574.24
  4. Step 4: Simplify right side
    882.46x = 760,385.64
  5. Step 5: Solve for x
    x = 760,385.64/882.46
  6. Step 6: Final answer
    x = 861.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.